[Elecraft] Re: S meter operationg

[fkamp@attbi.com]

I am offering this hoping it will have a positive impact.

If the current design does not support an S meter function when the AGC
is turned off, perhaps the entire S-meter/AGC function needs to be
re-designed.

Personally, I do not need a meter to tell me a signal is strong or weak,
but it does help somewhat in generating signal reports.

Regards,
Frank Kamp


lhlousek wrote:
> 
> Dear Dr MC,
> 
> You wrote:
> 
> "In general, there is no reason why the S-meter should not work when the AGC
> is turned off. One can disconnect the AGC control point and leave the meter
> still connected to measure the AGC voltage. You only need to disconnect the
> control line, not the line to the S-meter. This way, the S-meter still works
> but the AGC does not."
> 
> As you point out this works in some designs but in the K2 and other designs I am familiar with the S meter is in the AGC
> control loop so that its response is calibrated when the loop gain is taken into consideration.  If you open the loop
> after the meter the meter will be overly sensitive.
> 
> Lou   W7DZN
> 
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